Vacuum improving device for wet cooling unit based on jet entrainment technology

Abstract

The utility model discloses a kind of wet cooling unit vacuum device based on jet entrainment technology is improved, including water storage tank and air extraction unit, circulating water pipe is installed on the infusion tube of air extraction unit, cooling assembly, the cooling assembly includes the liquid storage tank of being arranged in the rear end of water storage tank, for the storage of cooling liquid, circulating cooling pipe is equipped with the adhesion setting of circulating water pipe, heat conduction layer is equipped between the circulating cooling pipe and circulating water pipe, and circulating cooling pipe and liquid storage tank are communicated with setting. The utility model can deliver the cooling liquid in liquid storage tank to circulating cooling pipe by cooling assembly, the low temperature of cooling liquid in circulating cooling pipe can take away the heat of water flow and gas, reduce the temperature of circulating water, cooperate with jet entrainment technology to improve the vacuum degree of wet cooling unit.

Description

Technical Field

[0001] This utility model relates to the field of thermal power generation technology, and in particular to a vacuum enhancement device for wet cooling units based on jet entrainment technology. Background Technology

[0002] Wet-cooled units are commonly used in thermal power plants. A wet-cooled unit is a type of unit that uses circulating water to cool the exhaust steam from the turbine. The exhaust steam enters the condenser, where it is cooled by the circulating water and condenses into water. The reduced volume causes the pressure inside the condenser to drop below atmospheric pressure, creating a vacuum. When a wet-cooled unit is operating, the main factors affecting the vacuum level are the temperature and flow rate of the circulating water.

[0003] The publication number CN218646092U proposes a vacuum optimization device for wet cooling units that utilizes the principle of jet entrainment. This invention starts a water pump, and water flows into the first circular pipe through the first liquid delivery pipe. The external equipment is then evacuated through the gas delivery pipe to create a vacuum with a pressure lower than atmospheric pressure. This method is less affected by external factors and is simple and convenient to operate.

[0004] Existing technology only increases the vacuum level by changing the flow rate of circulating water. However, the temperature of the circulating water and gas returning to the storage tank through the second infusion pipe is not easily cooled. As the usage time increases, the storage tank will remain at a high temperature for a long time, resulting in the subsequent circulation water being hot. The high temperature of the circulation water affects the vacuum level of the wet chiller unit.

[0005] Therefore, those skilled in the art have proposed a vacuum enhancement device for wet cooling units based on jet entrainment technology to solve the aforementioned problems. Utility Model Content

[0006] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0007] In view of the above-mentioned vacuum improvement device for wet cooling units based on jet entrainment technology, this utility model is proposed.

[0008] Therefore, the purpose of this utility model is to provide a vacuum enhancement device for wet cooling units based on jet entrainment technology, which is used to solve the problem of inconvenient cooling of circulating water temperature.

[0009] To solve the above technical problems, this utility model provides the following technical solution: a vacuum improvement device for a wet cooling unit based on jet entrainment technology, including a water storage tank and an air extraction unit, wherein a circulating water pipe is installed on the liquid delivery pipe of the air extraction unit;

[0010] The cooling component includes a liquid storage tank located at the rear end of the water storage tank for storing coolant, a circulating cooling pipe fitted onto the circulating water pipe, a heat-conducting layer between the circulating cooling pipe and the circulating water pipe, and the circulating cooling pipe being connected to the liquid storage tank for cooling the circulating water and airflow.

[0011] As a preferred embodiment of the vacuum enhancement device for a wet cooling unit based on jet entrainment technology described in this utility model, the cooling component further includes a mounting frame fixed to a liquid storage tank, the mounting frame being provided with a semiconductor refrigeration plate, and the cooling end of the semiconductor refrigeration plate being located in the inner cavity of the liquid storage tank.

[0012] As a preferred embodiment of the vacuum enhancement device for a wet cooling unit based on jet entrainment technology described in this utility model, the cooling end of the semiconductor cooling plate is provided with a cooling guide plate, and multiple sets of cooling guide rods are installed on the cooling guide plate.

[0013] As a preferred embodiment of the vacuum enhancement device for a wet cooling unit based on jet entrainment technology described in this utility model, the heating end of the semiconductor cooling plate is located outside the liquid storage tank, and the heating end of the semiconductor cooling plate is equipped with multiple sets of heat dissipation fins.

[0014] As a preferred embodiment of the vacuum enhancement device for a wet cooling unit based on jet entrainment technology described in this utility model, wherein: a liquid pump is installed on the liquid storage tank, the inlet of the liquid pump is connected to an inlet pipe, and the end of the inlet pipe away from the liquid pump is connected to the liquid storage tank.

[0015] As a preferred embodiment of the vacuum enhancement device for a wet cooling unit based on jet entrainment technology described in this utility model, wherein: a liquid delivery pipe is installed at the outlet of the liquid delivery pump, and the end of the liquid delivery pipe near the circulating water pipe is connected to the inlet of the circulating cooling pipe.

[0016] As a preferred embodiment of the vacuum enhancement device for a wet cooling unit based on jet entrainment technology described in this utility model, wherein: the return port of the circulating cooling pipe is connected to a return pipe, and the end of the return pipe away from the circulating water pipe is connected to a storage tank.

[0017] As a preferred embodiment of the vacuum enhancement device for a wet cooling unit based on jet entrainment technology described in this utility model, wherein: a liquid addition pipe is installed on the liquid storage tank for adding coolant, and the pipe end of the liquid addition pipe is threadedly connected with a cap.

[0018] The beneficial effects of this utility model are as follows: By operating the liquid pump on the cooling component, the coolant in the storage tank can be delivered to the circulating cooling pipe. The heat-conducting layer can remove the heat from the water flow and gas in the circulating water pipe. The low temperature of the coolant in the circulating cooling pipe can carry away the heat from the water flow and gas, thus reducing the temperature of the circulating water. Combined with jet entrainment technology, the vacuum degree of the wet cooling unit is improved. When the semiconductor refrigeration plate is working, the cold air generated at the cooling end can be conducted to the coolant through the cold guide plate and multiple sets of cold guide rods, thereby achieving the cooling treatment of the coolant and improving the cooling effect of the coolant on the circulating water and gas. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a schematic diagram of the overall structure of a vacuum enhancement device for a wet cooling unit based on jet entrainment technology according to this utility model.

[0021] Figure 2 This is a schematic diagram of the back structure of a vacuum enhancement device for a wet cooling unit based on jet entrainment technology according to this utility model.

[0022] Figure 3 This is a front cross-sectional view of the liquid storage tank of a vacuum enhancement device for a wet cooling unit based on jet entrainment technology, according to this utility model.

[0023] Figure descriptions: 100, Water storage tank; 101, Air extraction unit; 102, Circulating water pipe; 200, Cooling component; 201, Liquid storage tank; 202, Liquid filling pipe; 203, Infusion pump; 204, Liquid inlet pipe; 205, Liquid delivery pipe; 206, Circulating cooling pipe; 207, Heat-conducting layer; 208, Liquid return pipe; 209, Mounting frame; 210, Semiconductor cooling plate; 211, Heat dissipation fins; 212, Cold guiding plate; 213, Cold guiding rod. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0027] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0028] Example 1

[0029] Reference Figure 1 and Figure 2 This is the first embodiment of the present utility model. This embodiment provides a vacuum improvement device for a wet chiller based on jet entrainment technology, which can achieve the effect of cooling the circulating water and gas to improve the vacuum degree of the wet chiller. It includes a water storage tank 100 and an air extraction unit 101. A circulating water pipe 102 is installed on the liquid delivery pipe of the air extraction unit 101.

[0030] It should be noted that the air extraction unit 101 is a prior art technology that uses the jet entrainment principle to change the flow rate of circulating water to make its pressure lower than atmospheric pressure to form a vacuum, thereby improving the vacuum degree of the wet chiller. Before use, the electrical terminals of each electrical device are electrically connected to the external power supply and the electrical terminals of the controller through wires.

[0031] The cooling component 200 includes a liquid storage tank 201 located at the rear end of the water storage tank 100 for storing coolant, and a circulating cooling pipe 206 attached to the circulating water pipe 102. A heat-conducting layer 207 is provided between the circulating cooling pipe 206 and the circulating water pipe 102, and the circulating cooling pipe 206 is connected to the liquid storage tank 201 for cooling the circulating water and airflow.

[0032] It should be noted that both the circulating water pipe 102 and the circulating cooling pipe 206 are spirally arranged and are stacked together to reduce the flow rate of circulating water and gas in the circulating water pipe 102, allowing it to have more contact with the low-temperature coolant in the circulating cooling pipe 206, thus achieving the purpose of cooling.

[0033] When in use, the coolant is poured into the storage tank 201 inside the cooling component 200. The heat-conducting layer 207 has good heat conduction properties, which can dissipate the heat of the circulating water and gas in the circulating water pipe 102. The low temperature of the coolant in the circulating cooling pipe 206 carries away the heat of the circulating water and gas, reducing the temperature of the circulating water. Combined with the jet entrainment technology, the vacuum degree of the wet cooling unit is improved.

[0034] Example 2

[0035] Reference Figures 1 to 3 This is the second embodiment of the present invention. Unlike the previous embodiment, the cooling component 200 also includes a mounting frame 209 fixed to the liquid storage tank 201. The mounting frame 209 is provided with a semiconductor cooling plate 210, and the cooling end of the semiconductor cooling plate 210 is located in the inner cavity of the liquid storage tank 201.

[0036] The semiconductor refrigeration plate 210 has a cooling plate 212 at its cooling end, and multiple sets of cooling rods 213 are installed on the cooling plate 212. When the semiconductor refrigeration plate 210 is working, the cold air generated at the cooling end is conducted to the coolant through the cooling plate 212 and the multiple sets of cooling rods 213, thereby realizing the circulating cooling treatment of the coolant.

[0037] The heating end of the semiconductor cooling plate 210 is located outside the liquid storage tank 201, and the heating end of the semiconductor cooling plate 210 is equipped with multiple sets of heat dissipation fins 211; the multiple sets of heat dissipation fins 211 dissipate the heat generated by the heating end of the semiconductor cooling plate 210 when it is working, thereby improving the cooling effect of the semiconductor cooling plate 210.

[0038] The storage tank 201 is equipped with an infusion pump 203. The inlet of the infusion pump 203 is connected to an inlet pipe 204, and the end of the inlet pipe 204 away from the infusion pump 203 is connected to the storage tank 201.

[0039] The outlet of the infusion pump 203 is equipped with an infusion pipe 205, and the end of the infusion pipe 205 near the circulating water pipe 102 is connected to the inlet of the circulating cooling pipe 206.

[0040] The return port of the circulating cooling pipe 206 is connected to the return pipe 208, and the end of the return pipe 208 away from the circulating water pipe 102 is connected to the storage tank 201. The pump 203 works to deliver the coolant in the storage tank 201 to the circulating cooling pipe 206, and the coolant is returned to the storage tank 201 through the return pipe 208.

[0041] The liquid storage tank 201 is equipped with a liquid addition pipe 202 for adding coolant, and the pipe end of the liquid addition pipe 202 is threaded with a cap.

[0042] In use, open the cap on the liquid filling pipe 202 and pour the coolant into the storage tank 201. After starting the liquid pump 203, the liquid pump 203 works to deliver the coolant in the storage tank 201 to the circulating cooling pipe 206. The last coolant flows back to the storage tank 201 through the return pipe 208. The heat-conducting layer 207 has good heat conduction and can remove the heat of the circulating water and gas in the circulating water pipe 102. The low temperature of the coolant in the circulating cooling pipe 206 carries away the heat of the circulating water and gas, reducing the temperature of the circulating water. Combined with the jet entrainment technology, the vacuum degree of the wet cooling unit is improved. When the semiconductor refrigeration plate 210 is working, the cold air generated at the refrigeration end is conducted to the coolant through the cold guide plate 212 and multiple sets of cold guide rods 213, realizing the circulating cooling treatment of the coolant.

[0043] It is worth noting that the entire device is controlled by a controller. Since the controller is a common device and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0044] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A wet cooling unit vacuum improving device based on fluidic entrainment technology, comprising a water storage tank (100) and a gas extraction unit (101), characterized in that, A circulating water pipe (102) is installed on the infusion pipe of the air extraction unit (101); The cooling component (200) includes a liquid storage tank (201) located at the rear end of the water storage tank (100) for storing coolant. A circulating cooling pipe (206) is provided on the circulating water pipe (102) and a heat-conducting layer (207) is provided between the circulating cooling pipe (206) and the circulating water pipe (102). The circulating cooling pipe (206) is connected to the liquid storage tank (201) for cooling the circulating water and airflow.

2. The vacuum enhancement device for a wet refrigeration unit based on jet entrainment technology according to claim 1, characterized in that: The cooling component (200) also includes a mounting frame (209) fixed to the liquid storage tank (201), and a semiconductor cooling plate (210) is provided on the mounting frame (209), with the cooling end of the semiconductor cooling plate (210) located in the inner cavity of the liquid storage tank (201).

3. The vacuum improving device for the wet cooling unit based on the fluidic entrainment technology according to claim 2, characterized in that: The cooling end of the semiconductor cooling plate (210) is provided with a cooling plate (212), and multiple sets of cooling rods (213) are installed on the cooling plate (212).

4. The vacuum enhancing device for a wet cooling unit based on the fluidic entrainment technology according to claim 2, characterized in that: The heating end of the semiconductor cooling plate (210) is located outside the liquid storage tank (201), and the heating end of the semiconductor cooling plate (210) is equipped with multiple sets of heat dissipation fins (211).

5. The vacuum enhancing device for a wet cooling unit based on the fluidic entrainment technology according to claim 1, characterized in that: The storage tank (201) is equipped with an infusion pump (203), and the inlet of the infusion pump (203) is connected to an inlet pipe (204), and the end of the inlet pipe (204) away from the infusion pump (203) is connected to the storage tank (201).

6. The vacuum enhancing device for a wet cooling unit based on the fluidic entrainment technology according to claim 5, characterized in that: The outlet of the infusion pump (203) is equipped with an infusion pipe (205), and the end of the infusion pipe (205) near the circulating water pipe (102) is connected to the inlet of the circulating cooling pipe (206).

7. The vacuum enhancing device for a wet cooling unit based on the fluidic entrainment technology according to claim 1, characterized in that: The return port of the circulating cooling pipe (206) is connected to a return pipe (208), and the end of the return pipe (208) away from the circulating water pipe (102) is connected to the storage tank (201).

8. The vacuum enhancing device for a wet cooling unit based on the fluidic entrainment technology according to claim 1, characterized in that: The liquid storage tank (201) is equipped with a liquid addition pipe (202) that is connected to it for adding coolant, and the pipe end of the liquid addition pipe (202) is threaded with a cap.

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